This look similar to bug #235768. There is there a somehow workaround but I had some trouble with it (comment #24).
Ubuntu 16.04 LTS. ASUS ZenBook Pro UX303UB. compiz 1:0.9.12.3+16.04.20180221-0ubuntu1 NVIDIA Corporation GM108M [GeForce 940M] (rev a2) Kernel driver in use: nouveau -- You received this bug notification because you are a member of compiz packagers, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/1479083 Title: Enhanced Zoom Desktop has no effect except making mouse cursor disappear To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/1479083/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : compiz@lists.launchpad.net Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp